MLR's 86 not a build thread thread
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Also, the cause of fuel spills and smells from the top of the tank is almost always the rubber hoses that are up there, not the tank seal. -
1. No, as you say you can remove the connectors and fuel lines. Before you do make sure you remove fuel pump fuse and crank the starter a few times to release pressure, and also loosen the fuel cap (just in case the tank is slightly pressurised) as it will pump out the lines otherwise 2. Not necessary but you are right, if it is the factory pump it is at risk of failing after 25 years....Changing it is not hard but potentially not trivial as you have to make sure you have the right pickup/sock for the pump to suit the tank, need to make wiring connections (crimped butt connectors would be fine) and have to mount/adapt the new pump in the right place in the cradle. Not impossible but don't start the job if you aren't confident. Also, the plastic nut that holds that seal in place can be really hard to remove. If you don't have a fuel nut removal tool it generally requires a big screwdriver or similar to bash the ring around a few times before you can get it by hand. Also the fuel lines can be very sticky on the tank lid fittings, hose removal pliers can help or if not twist the hose on the fitting (eg with linesperson's pliers) to break the seal before you try and remove it. Finally, mark the feed and return hoses so you don't put them on backwards and seal them with an m8 bolt to stop crap getting into the lines while working. Add a little grease in the threads of the plastic lid when you go to do it back up as a gift to your future self, and make sure you put it on evenly/not cross threaded. Having said all that, most likely the lid just needs to be either tightened or removed and put back on without being cross threaded...the seal itself is usually pretty good. -
By DraftySquash · Posted
Another weekend and another project I have questions about.... I bought a fuel tank sender O ring to install on the car because I'm quite sus on what I've got now. 1. No "whooosh" sound when opening fuel cap 2. If I fill up full tank, there will be a small leak under the car and it comes from the top of the fuel tank, dripping along the side. Stops after a short while 3. Hot days = 50/50 chance to get high as a kite inside the cabin if the car was in the sun for too long This is what I bought: https://www.amayama.com/en/part/nissan/1734279900 My plan was to just replace the O ring but I've got some questions: 1. Does the whole fuel pump assembly need to come out for me to replace the O ring? Or, could I unplug all the connectors and fuel lines at the top, take off the twisty part (17343) and put in the O ring from the top? 2. Is it a very common thing for everyone to just change the pump whenever doing this? I see the Walbro 255 gets thrown in a lot but I've got no issues with my pump so far. When I did the tune, I asked the guy to check my fuel pressure and he said there were no issues too. But is it just a good idea to change to the 255 anyway as the old unit may have been in there for so long? The 255 seems to be a direct fit for GTT (I got no soldering iron) -
By robbo_rb180 · Posted
Normal speedtek issues, bin it and go cdoo# or 8hp. So many issues with these gearsets, a mate went through 3 rebuilds and multiple parts with heat, bearing and vibration issues. -
I wouldn't go near them, they are rubber seals for a reason. Just chuck new cam cover seals, half moons and the spacers for the screws every decade or two. I add a really thin layer of silicone too and it seems to hold together OK
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